bug protein/hormone definitions

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nick the lost biologist
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bug protein/hormone definitions

Post by nick the lost biologist » Sun Oct 02, 2005 11:47 pm

hello everyone, i am new here and your dictionary told me to ask you guys.

if any one knows or has some idea or even knows a realy good place to loook (ive been seemingly every where) for what the folowing is please, please tell me! this is for a biology report for my last year in high school and its worth alot in marks. am investigating growth patterns of greater wax moth larvae in different temperatures (20, 25, 30, 35 degrees cellcius)

what is/ are
major brain proteins 112kDa, 84kDa
larval hemolymph protien (LHP)
Prothoracic gland (PG)
juvenille hormone (JH)
prothovaicicotropic hormone (PTTH)

thank you

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Inland Taipan
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Post by mith » Mon Oct 03, 2005 2:35 am

please don't pentuple post nick, it makes it that much messier and harder for us to keep track of threads.
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Post by Mjhavok » Mon Oct 03, 2005 4:31 pm

I got this from a 5 minute search spree on the net. Hope it can help.

juvenille hormone = A hormone secreted by insects from a pair of endocrine glands close to the brain. It inhibits metamorphosis and maintains the larval features.

Prothoracicotropic Hormone (PTTH) = Molting and pupation require the hormone, PTTH, secreted by a two pairs of cells in the brain of the larva. If these cells are cut out of the brain of a full-grown larva, pupation does not occur. This is not because of the trauma of surgery; if transplanted somewhere else in the caterpillar's body, pupation occurs normally.

PTTH is a homodimer of two polypeptides of 109 amino acids.
PTTH does not drive pupation directly but, as its name suggests, acts on the prothoracic glands

Prothoracic gland: Either of a pair of endocrine glands located in the prothorax of certain insects and regulating molting.

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